Lithium Tungstate Crystals from Mexico
Lithium tungstate (Li2WO4) crystals serve in nonlinear optics and as flux in metallurgy, falling under HTS 2841.80.0050 as other tungstates. Classified here as unworked chemical compound per electronics doping note.
Duty Rate — Mexico → United States
5.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Specify if doped for electronics; cut wafers shift to 3818
• Include origin certificate for critical mineral scrutiny
• Differentiate from lithium carbonate (2836) in assays